India, Oct. 20 -- Andaman and Nicobar Islands are on "cyclone alert" due to a cyclonic circulation over the Bay of Bengal, which is likely to intensify from October 21, according to the India Meteorological Department (IMD).

After the IMD alert, local port warnings have been issued as the weather system is likely to cause heavy rainfall till October 23.

"Heavy rain (7-11 cm) is very likely to occur at one or two places over Nicobar Islands. Thunderstorms with gusty wind (40-50 kmph) and lightning are very likely to occur at one or two places over Andaman and Nicobar Islands on October 21, 22 and 23," officials told news agency PTI.

Thunderstorms with gusty wind (40-50 kmph) and lightning are very likely to occur at one or two places ov...